Multiple show-case door lock



' April 15, 1924.

- 1,490,321 L. HOCHREINER MULTIPLE SHOW CASE DOOR LOCK Filed Nov. 25.1922 Patented Apr. 15, 1924.

UNETEEE aTATES MULTIPLE SHOW-CASE DOOR LOCK.

Application filed November 25, 1922. Serial No. 603,263.

T all 1071.022). it may comer 11 lie it known that I, Lnoronn Hoonnnmnn,a citizen of (-Iermany, residing at New York, in the county of New Yorkand State of New York, have invented certain new and useful Improvementsin Multiple Show-Case Door Locks, of which the following is aspecificalion.

This invention relates generally to showcases or cabinets used in storesto contain merchandise of acertain class such as clothing or the like,and which in general have their front walls formed by a number ofsliding glass doors, the invention having more particular reference to ameans for locking the said doors.

The invention has for an object to provide a simple form of unitarylocking mechanism for the doors whereby manipulation of a simple memberserves to simultaneously lock and release each door.

For further comprehension of the inven tion, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

Fig. 1 of the drawings is a fragmentary horizontal sectional view of ashow cabinet having the invention applied thereto, this view being takenat the point indicated by the line l-1 of Fig. 2.

Fig. 2 is an enlarged fragmentary transverse sectional view thereof,taken on the line 2-2 of Fig. 3.

Fig. 3 is a fragmentary longitudinal sectional view taken on the line3-3 of Fig. 2.

Fig. a is a fragmentary horizontal sectional view taken on the line 454eof Fig. 3.

Fig. 5 is a perspective view of the cabinet.

Fig. 6 is a fragmentary longitudinal vertical sectional view showing afurther development of the invention.

My invention may be applied to any ordinary type of cabinet such as thatillustrated in Fig. 5. In the various figures of the drawing the top ofthe cabinet is numbered 10, and the end walls 11, and the back 12. Thefront of the cabinet is formed in the main by a number, as here shownfour, of glass paneled doors, which are alined in pairs and are guidedin pairs of grooves suitably formed in the front of the cabinet adjacentthe top and bottom thereof.

The top ones of these grooves are shown at and 16, in Fig. 8, beingsuitably formed between a headboard 17 extending along the front of thecabinet and a second board 18 depending from the top 10 of the cabinet ashort distance behind the board 17. A horizontal partition element 19extends between these boards near the lower ends thereof, dividing off,with the board 18 a small chamber 20 extending from end to end of thecabinet and which contains the lock operating means. The pairs of doorswhich engage in the respective grooves 15 and 16 are numbered 21 and 22.i

To lock these doors I provide a series of vertically slidable bolts 25extending freely through suitable borings in the member 19 and adaptedto engage in sockets 26 in the doors, metal reinforcing washers 27 beingprovided on the faces of the member 19 and at the mouths of the sockets26. The bolts 25 are adapted for operation by means of bell crank levers28 which are fulcrumed as at 29 to a tongue 30 projecting upwardly fromand extending along the member 19, and fixed thereto by screws such as31, the levers connected to the bolts engaging the respective doors 21and 22 being located on.

opposite sides of said tongue.

Each bolt 25 is connected, by a slot and pin connection such as 33,with. one arm of its operating lever 28 while the other arms of theselevers are connected by slot and pin connections such as 3&with a barlying slidably on the tongue 30. The first mentioned arms of the levers28 extend in a generally horizontal direction, while the secondmentioned arms extend in a generally vertical direction so thatlongitudinal movement of the bar 84; moves the bolts 25 vertically. Tomove the bar 35 I provide another bell crank lever 38 fulcrumed as at 39to the member 19, and extending through a slot 40 therein, one arm 38 ofthis lever extending upwardly from its fulcrum point to engage, by aslot and pin connection 41, the bar 35. The other arm 38" of thelever-extends, below the member 19, toward the adjacent end wall 11 ofthe cabinet in which is an aperture l3 with which the end 38 of saidlast arm 38 registers, this lever end being shown as squared to receivea suitable key.

Extending around the cabinet, on a level with the aperture 43, is amolding strip l i which has a short movable section covering theaperture. This molding section 44 is fixed on a steel plate 4.5 slidablypositioned en a shorter steel plate 46 fixed as by screws 47 to the endwall 11 between the aperture 43 and the face of the cabinet. Outwarddisplacement of the section 45 is prevented by a headed pin 48' fixed tothe plate 45 and projecting through a slot 49 in the plate -16.

As will be apparent, under normal condi tions the lock releasing meansis entirely concealed. IVhen it is desired to unlock the doors themolding section 45 is slid forward to uncover the aperture 43, asuitable key is inserted therein and engaged with the end 38 of thelever 38 and the arm 38 of said lever swung downward, moving the bar 34and raising the bolts 25 from engagement with the sockets 26. v

In Fig. 6 I have shown a further development of the invention designedto prevent damage to the parts by someone first inadvertently throwingthe bolts downward and then sliding the doors to closed position.According to this feature of the invention each bolt 25 has an enlargedupper portion 25 providing a downwardly facing shoulder 50 which israised slightly above the partition member 19 when the bolt is released.Slidable on the said member 19 is a flat bar 51 having one end, whichmay be suit-- ably concaved, adapted to engage under the shoulder 50 andso prevent the bolt being moved to locking position.

The other end of this bar 51 has a slot and pin connection 52 with onearm 53 of a bell crank lever 53 which extend downwardly through themember 19 and is fulcrumed as at 54 therein. The other arm 53 of thebell crank lever presents a convexed under surface 56 which projectsdownwardly below the top edge of the door, a portion of one of saiddoors being indicated at 21. A spring 57, located in a recess 58 formedin the member 19 to accommodate the lever, and bearing on the lever arm53 normally holds the parts in the above described position. I

As will be apparent the bolts 25 cannot be depressed until the doorshave been closed. As each door reaches locking position it raises thearm 53 of a lever 53 and causes the bar 51 to be withdrawn from underthe shoulder 50.

Having thus described my invention what I claim as new and desire toprotect by Letters Patent of the United States is as follows:

1. A cabinet having a series of sliding doors, and having an aperture inone end Wall thereof, locking means for said doors, a moulding stripextending around the cabinet on a level with said aperture, and having amovable molding covering said aperture, and a movable device in saidcabinet registering with said aperture and operatively connected withthe said door locking means.

2. A cabinet having a series of sliding doors, and having an aperture inone end wall thereof, locking means for said doors, a moulding stripextending around the cabinet on a level with said aperture, and having amovable molding covering said aperture, and a movable device in saidcabinet registering with said aperture and operatively connected withthe said door locking means, said movable molding section being slidablymounted on the end wall of the cabinet.

3. In a cabinet, a series of sliding doors, having sockets in theirupper edges, vertically movable bolts adapted to engage in saidsocket-s, bell crank levers operatively engaged with said bolts. a. barope-ratively engaged with all of said bell crank levers, an additionalbell crank lever operatively engaged with said bar and having one endregistering with an aperture in the end wall of the cabinet and adisplaceable closure element for said aperture.

4. In a cabinet, a series of sliding doors, having sockets in theirupper edges, vartically movable bolts adapted to engage in said sockets,bell crank levers operatively engaged with said bolts, a bar operativelyengaged with all of said bell crank levers, an additional bell cranklever operatively engaged with said bar and having one end registeringwith an aperture in the end wall of the cabinet, and a slidablo moldingsection normally covering said aperture.

5. A cabinet having a series of sliding doors. bolts adapted to engagesaid doors to lock the same, a unitary means for moving said bolts, andmeans preventing said bolts from being moved to locking position whenthe said doors are in open position, said means comprising for each bolta slidable bar adapted to engage a shoulder thereon, and a bell cranklever engaged with said bar and having a. curved arm adapted to be movedby the door to release the said bar.

In testimony whereof I have affixed my signature.

LEOPOLD I-IOCHREINER.

